<center>
  <table>
    <th colspan="2">Acesso ao Sistema</th>
    <%= form_tag(entrar_path) %>
    <tr>
      <td>Login</td>
      <td><%= text_field_tag :cpf %></td>
    </tr>
    <tr>
      <td>Senha</td>
      <td><%= password_field_tag :senha %></td>
    </tr>
    <tr>
      <td></td>
      <td><%= submit_tag 'Entrar' %></td>
    </tr>
  </table>
</center>